Switch mechanism with door-interlock



H. F. KRANTZ.

ERLOCK.

ililny, M u

H. F. KRANTZ. SWITCH MECHANISM WITH nook |NTERLOCK.

5 SHEETS-SHEET 2.

Patented June 8, '1920.

APPUCATlON HLED fE. Il. w19.

LOCK.

H. F. KRANTZ. swncH MECHAMSM wlTH noon APPLCATiUN FILED FEB. Il.

all

H. F. KRANTZ.

SWITCH MECHANISM WITH DOOR INTERLOCK.

APPLICATION mw mm1. |919.

8, 1920. lSHEET 4.

#QL y m11 www.,

3 nvm/Lto@ az HMA,

` and Stateof New Yer STATES n. PATENT om@ HUBERT r. immer, or nnooxnni, `:sind renin saumonv :ro -mn'rz' Minturnotoms:

segmenti?, me., or. snooxmn. nsw rang.; onomrrion or new 'i 1W l" Is'mfin'rn' noon-inhammen.'

Patented J une 8, 1920.

Uriginal application llediigust 2, 1917, Serial'lo. 184,011.` Divided and this application nica Fel v 30.1714151819. SerlaINaJlBiW;

Ib all whom it'may' concern: -f A Be it known that 1, Hiinnirr F. Knarrrz,

residing at Brooklyn, in the county of Kings have invented oertainfnew and -usesEul 1 nnrovements in a Switch Mechanism with oor-Interlock, of whchthe following is a speciition.

This is a dirisionof my` pending .application SerisLNo. 184,011, multipleiinit safety- .Swili board, filed August 2,1917.V

The object of-this invention `is to provide improved safety mechanism fon preventing accidents tio-the operators of switch boards.

.Affurther object is to provide improved means whereby n switch protecting inember is "held against being disilaced while any of the parts, which mi ht e accessible -when said niard memberis iplaced arelive.

A urther and more etailecl object Vis to provide a switch` -containerliaving a door giving entrance thereto, and to provide an improvedswitch mechanism-within the container having switch operating means which ma extend to the front face of the board, en i the 'switch mechanism adapted to revent opening of the-gdoer whi ethe switch is on andto revent on movement ofthe sii-'itch while e door is open.

A further obiect is to provide .a mecha-4 nism as above referred to which, while it is herein shown and ldescribed as beingassociatel with a switch board structure, may

obviously be employed in connertionwith' individual, switch containers of I other typen, such for instance as disclosed in my above, will be in pai-t obvious and in part ointed oiit'inthe course of the following escription..of the elements, coinbinations, arrangements-of jpai-ts and applications of principi constituting theinvention, and

-the scope of protection contemplated will be indicated in the appended'clagims.

1n the accompanying drawings a to be taken nefs ypart -oftl'iis specification,y am] in which ll have-:shown merely apre ferred form of embodiment 'of tlieinvention: A Figure 1 is n; vertical transverse sectional door open.

which are view illustrating a switch mechanism and associated' parte constructed in accordance with this invention, the' section being taken snbstantiallynpon the plane of line I-I of lifig. 2. A

Fig-.Q is a; rear elevational view of a part of a switchboard, parts being broken away to better disclose the construction.

F 1g. 3 is a horizontal section view taken iibstilintially upoiithe plone of line IIIof '1 is an enlarlied ravmentary scctiona .view ,taken sirstantiaclly upon the planeof line IV of Fig. 1. Fi. `5 is. a. siinilarsectionnl iview showingt e pnrtsef Fi f. 4 with the switch mechanism in the o position and the door 'the on position, with Athe door yet closed.

Fig. T is a diagrammatic view showing the parts of Fig. 5 as they appear with the Fig. 8 is a detail sectional view taken snb stantially upon the plane of line VIII of Fi 5 and' gf is a detail'perspeetive view of the #connecting link .which extends from the switohmechanism to the door.

Referrin r to the drawings for describing;l in detail theexeniplary structure illustrated therein, the reference character L indicates the main, or base plateof the switch board.

Tivo sets o'blis bars, as 1 and 2, are fixed to the rear surface of the base plate, all in substantially parallel relation and extending vertically of the plate. A

.kt the opposite iei'tioaledgcs ofthe plate nre branch inc wire channels 3 made up of wall members 4 and 5.

An intermediate ,partition 6 is ari-angel 'between the branch line wire channels 3 and citheiso tlieivalls 4 s' (lividcd vertically by anynninber of horizontal partitions T seas to divide said space into a desired number of superposed pockets, o ij stalls. Each stall ico Il 1, no

is closeiifnt` the rear Yby a separate ard as to be bodily nsertible intothe stell und a5 l1z1el.nber,or door@ anfi'es/ehstallise pted removable from the stall with' the to .removably eontun en.- mde dentl barrier. formed' Aend independently tt-eh e: The barrier may be'oonsidered as a frame, 51'. umtngs eletrly mt' -eppheetron er1-carrier, for tliewitoh m "bonf 1s u d1v1s1on. t i tente-andinas ehps'by means'of whichy 11.70 Ihemteh umts oompnsea of said parte n uiy er in m8,-pretenlilyf msletgxg-rputeml mPdr eoporetveposition with bus 4 4: f Anqmertd 1n. intotheldstefl boord moving o switch unit into position -stehtmlly'; Yerallel ente tl'xe teer surfnet of 'wlthin e stell it .'islsimply necessary 'to 'rest 75 the 'Lbntspeeeduga therefrom Vthe herrer 'e "n the-hormontel prtition 7 gqgggommg-bgmeg y 'thekmll formmgthe" ttom ,well otthe stall and fonltlmrhtgs: bi1-esq tliat anni busfbe'rs'mey thentomove 1t inwardly 4gmtil the? upper' 15411-01; b -n.n' operatorandI lower rtions of its forward yfece en 'wlxen the 9or`isopem' Stutagle fuse-elige 9 geage against sui bly menged cross memso end-1Q am arranged n xppn reenter eee rs 21. VAttuhin Qerevvs' may then be inof the barrierolj retemmgfwfieqllo Bertedthmgh apertures to Hx the Contact providedf-at the borner to eexdorosemembers. 2D. forward-fegmf the base board orlberrier 8 The positionof the cross members is such,

for meeting `wsitlrthe blades-13.. T'he with'respeettothel'eer sux-fece of the base 85 contaet members V12' are er 'ged/op o szte plete L, as'to proper! .and positively deterto the adjacent-main line bmi es ,tend 'mme thefoasit10-n oft e forwetd fue of the r f there `is,ofeorser,'one s'witeh bl'de for qw'oh hemel' mth respect `to the busbers l--when 1lit bu bei* milione 1li-for each mitch the barrier ien'mvedzhome egeinst the cross blade.. The eontaets 121m :electrieell coni members. The svgritchblndes ,ndv contacts so nected with clips 1y by 121m `likewise properlypoaitioned by the 'means of* bolts-which througl1;the cross members et-the'seme time.y to-hold the, n.n i oontact 4 oftheevirire chennels 3 are' remembers in position.' The.' elige 9 are formed: wxtlruitaible openings 22 through Sbysuitable plates `to whlh the which fthe, ,br-anch line wires'- mey extend e5 branch lin'e terminalsl maybe oonnected, into. communication with the terminels 14.4 -as olearlv shown in 1. The construction ofthe swlthmechgnism, The ewtehblqdes xesupportednen and'its'mennerof eontrolfinclurlese bellelongated 15. carrier is p ivcrenkwhhis pivotal! mounted, as at 23;

ed wmnhquumogimdinn sur, upmtheper sur me plate 17 This 1w able 16 beingtprovided at 1 opbell-crunkisV preferably. mario up of two andi@ -wi'thin henri plates e524 and 25,-speced apart; At the grmi .-p @es 1'L The bla, es end of one of the arms e link 26 is ivotally 4o nrespd-ipmfan the -l of. the. mounted between theplewS-f w 25- 1l11d carrier anti roj'oe't respectively. to Ale 'by .means 'of' which to; swing the 1.10 The supporting. plates I7 arecarried hy svn blodeqtofon nndfotf positions. the Barrier bjfmens 0f blket plalteg 19. o1flt1ngrod gextendg the These 'lr'eckletpletes are arranged one et .plates `endl-.215 en@ haesloteonneetnon earch ed" inf-the barrier and'a't m'g'ht angles with n cross pm et the rexnemipg end.

to -the ofthe lbarrierljTheyex-egre of-tlie-bel1er\nk. This operatmgjrod e3;- 115 to the errierreferuhlyby 0f bolts, tends orwerd en olmngwm or rivets-20. -Ehe supporti plates 17 ere .thebaseplate and 1s .oonnoe to be o riveted, zar-otherwise 'tothe -inner eratedhb'e handle 81 attheffront of e 66 surface of .the lates 19 en extend fo1 bese.p z.

wardlybeyod .t ehu-tier, as -olearly mdi- Thum, when the -lmndle- {l1-1s, moved mto-120 'cetedi I e 'rverticalzllzf 'gufonkpos1zon,.the E it wll'be understood thehun swi 1te. -eren 'en stru v e 6tlg;v means may beelplo gedfog tognfaseo es to .hold the atviteh ludeon"r so eonneetingthe support' plates 7 with' ns1; wn `nfjli`1gs 1. 'On;the`qtl'w 1hndg i the barrier. Theprincipnuirementiin when theendlevlsthrown-dqvv .mug-0m thiscommun is sim 15pm sup ortpotion-,jthe'ro 281s=movedbeck- 4 wltrdlyso ing lates an all of tifa pertsoerriodft -that thejroer A dpf lts slot 'engages the by ngel! be in turn carried ,I iyftheberer 8 0 erom-pmi!) and swings the bell-omni: to

terelly erefrom. extendsintopivotal connection with the m6" break thentogle and to permit the.

sition, the slot ,in hemd 28 herein shown and described,

i menue blade tovsnbp .into oli position, IIS-.shown the corner ino ng f tween the carrier. the edlaeent supportingblade, .L7 -eo es lto ex'ertle constnt tendency'to move thel cerner 'intothefoiP oroviding, or an unobstructed. movement of t a' to le into oli position once thetoggle is' bro In order rto revent the ard member, or door Gl"z from o 'whilejthe switch is on seid door is preferebly mounted upon hinges-34 et the rear edge of thezwall ltand a link B5 is pvotallyflnounted thereto, as byl a pin 86, carried by a, stud 37 xed.to the door. The stud sulports the 1n 36 at a I int removed from t e exis of T 'e link 35 is shaped substantially as shown in Fig. 9 and its inner end carries aj lug 38 'which slidesl bockwardly'. and `forward1y el?) e slot 'formed in the adjacent' Alute 17 w enever the door is openedor cl A. trensversehead40 'is formed et the outer end ofth lug to prevent accidentel detach-` :nent of the lug from the slot.

The plete 25 of thejbell-crank-ebove described, 4ici- Jeni dond is provided with en arcuate slot 4 through which the lug 88 extends the 'plate 25 being between e end of the slot llterminetes ina radial ex- 'nternosed Vtension slot 42. Whenthe 'is inthe ,on position the l at one end-of the arena. slctgand theenga ment of the wells of this slot withy theI ng prevents the llug from moving outwardly toppe'rmitopening of the door and thus, of course -preventie 'the door opeuech o lon es the door is closed the bell crank'mye swun freely, .the lug eccommodated'by e ercuete slot.' en the beilgcrenk is in the niil ition, the extension' slot 42 will stan in 'parallelism with the slot `39 und the door may then be opjened at the l 38 truveiin nlong the es olea-r yshcwn in Figsr to 8.

- After; the lug .38 's moved into theslot42, seid lu'g serves as a osltive stop against. o ,ny return rotation of e plete 25, thus locking the'switch mechanism in the oiPposition whenever the door is opened.'V

".Itii'illfbefapurent that, while the well members 4- an f ti-thebaseA plate L and the door G, and the horizontal portitions 7, es

constitute elements of o structurel which includes a u r'el'it'y ofi-stalls 4for receiving indepen ent switch mechanisms, nevertheless in so for Ies the invention hereln disclosed is concerned, said elements constitute an inc losure for the switch m `anisxn as sued by ehinge.

plate 17 and the 35. One

length of the two ots,l

and so that the'switeh mechanism may not Position to render they be moved-tov theonfuse terminals Iive closed.

when it is desired'to remove one of the swltchuni it's simpl required to-throw the YSwii'lb ii, open t Ye door, remove the when the door is berrierreteixj'in "iscrei'vs, disconnect the link When tbeflink 35 has been d1soonmicted'A from the door and h as swung downwardly" into a vertical position, its head 40 willI eg- Y inter with the slot 39A and may be re'cily:

therefrom if desired. Asmnnyjchnn could be mede in this construction wit )out departing from the S0612e 0ftbQ-iIlVBtou as defined infth-'fol lowing' claims, it is intended thetf all mat' or the switch lede including n guard door, o `ratingmeans for operation` the switch b ede including a. slotted plate, asecond slotted plnte, and means movable in the slots of said two lates extending into connection with the oor :tdstpted to prevent movement of the switch into on position except when the door is closed.

2. A. switch board comsrising e' fece plate, e movable 'switch ble e, n supporting member for the switch blade, means 'forming en inclosure for the switch blade-includ gorted therebymeans forming an inclosune.

ing a. guard door, o link connected with the door extending towardthe switch mecha.- nism end having n. lug at its end sldab'ly engaging within n. slot-formed in the sup.

porting member to more back und :forth clon seid slot es the door is opened and closel, o rating mensfor operating1 -the switch b ade :includmge-plete pvotelly mounted upon seid eupportinmember, said pletehevng e slot formed t erein extend- 1ng radially from' its pivot through'whch Vmember' when- '-one portion of sai a5' retin means including a miieuntedgplete having a slotforni therein,A

said lug also extends, said lust mentioned slot being disposed to register with the slot in the supporting member when the switch is 1n the of position whereby to permit unobstructed movement of the lug buck and slots when the switch forth along said two and whereby' to E?! is in the of position vent rotation of the [tip te andtlius to the switch in the .o position when the door is o en, and said plate having ate lot ormedat one and of its radial slot.

.adaplted to receive-said. lug upon movement. of. t e

switch into-on osition when the door is closed and to the lug`against movement alo the slot -in the supporting e s1vitch-is en.

,8f A.' switch mechanism compris' e. casinghaving an opening thereinto, a oor for said o ening, a swltcli blade, opeiatin ineens or operating the switch blando, sai v operating means including. a pivot-.elly mounted' plate having a slot therein, und means connected toniove with the door lia-ving expert extending into said slot copera-v tive toprevent movement of-'tlie switch blade -into on position except when the door is closed. j

'54. A switch mechanism coiiipmsin a casing having an opening thereinto, a oor Lfor said opening, a. switch blade, operatln means for operating the switch blade, sai operating means includ a eiivotally mountedl plate hav a slot rm therein,

Blot being with the pivot ofeaid gter undA another portion of said slot exten g radially -from said pivot, and means connected to nieve with the door having a part extending into said slot coperative to prevent movement of the switch blade into on. position ex cept when the dooris closed.

l5. A switch mechanism eomprisi a casin@` having an opening thereinto, a oor for said opening, n switch binde, operati c means for opencting the switch binde, sai operating means including a pivotelly mounted plate' having u slot formed therein, one portion of seidslot being concentric with the pivot of said-pleite und another portion of said slot eiitendinj radilr from said pivot,u stationery mem er fi vudguicent seid plate having a slot therein, and means connected to move with the door lm ving a part extending into the slot of sind stationary member and into the slot of said plate. i'da. ted to prevent movement of the switch b de into. on position except when the door closed,

6. A switch mechanism comprisi a caeing having an opening theieinto,a t oor .for said opening, a switch blade, 'oparatin means for operating the switch blade, sai

, switch blade is concentric ivotally one portion of said slot being concentric with 'the prvot of said plate and :mother portion of sind slot extending radially from said pivot, astationary member fixed adjacent said plate having a slot thereiii-1 and means connected to move with the door ha vpart extending into the slot .of seid stetnniaiqj,I member and into the slotof said plete adafpetd to prevent opening of the dooiexoept w' the switch blade is in the olf position. A 7. A switch mechanism comprisi r a casing having en opening ther-cinto, alihor for said opening, a switch blade, operatin.

meansfor-o rating the switch blade, sai

operating meansl includinga pivotally mounted plate havin u slot formed therein, one porliomof 'sai alot being concentric with the pivot of snid ilate and another portion of said slot exten ring radially from said piirqt, u. stationary member fixed adjucent seidV plate having u slot therein, and ineens connected to move :with the door havingle part extending into the slot of said stotionary member end'nto the slot of said plate adapted to Prevent movement of the switch blade'int'o on position except when the door in closed and also adapted to prevent opening of the door ,except when the in the oil position.

8. A' switchboard comprising a. supporting member, ui movable-switch bledeieupportedthereby, means forming en'4 inclosure or the switch blade including a guard door, operating means for operating the switch li ade including a movable plete having n slot therein parts of which'extend longitudinally in clilerent angular directions, and menne movable elongsaid slotrornone part thereof to the other sind extending into connection with the door adapted to prevent movement of the switch into on position evcept when the doei-is closed.

9. A .switchboard comprising u support connection with thedoor adapted -`to pre avent openiiiE ,of the door-except when the switch is o 10. A switch boei-.d comprising e supporting member n movable switchlilade suprted there X, means forming an inclosure im the switci blade inchidin a door, a member connected to move wi the door, and o rating meonsfor theswtch blade inclu ing a movlile pairthaving a. slot therein into which the member connected with the door extends, said slot having a portion disposed to allow movement of the member connected with the door when the slotted part is in one position and having another part providing a wall disposed to obstruct movement of the member connect-- ed with the door when said slotted part yis n another position, ,all whereby to prevent movement of the switch into on pos- 10 tion except when the door is closed.

In testimony whereof I alix my signature in the presence of two witnesses.

HUBERT F. KRANTZ.

itnesses C. J. PETEILSEN,` B. L. STEEN. 

